The plot gets tangled -- by fixing one thing, McFly and Doc Brown (and the villainous Biff Tannen) create a number of new messes -- but what remains is the film's vision of a year that was still more than a quarter-century away when the movie was shot and released in 1989. The entire trilogy is even being rereleased Wednesday, so you can see for yourself.

The film's record isn't bad, given that director Robert Zemeckis wasn't pleased with setting part of "Back to the Future II" in 2015.

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What 'Back to the Future' got right about 2015

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What 'Back to the Future' got right about 201503:30

In the Internet age, Zemeckis has grounds for concern. Over the past few years, Photoshopped images of "Future's" DeLorean time machine have popped up on the Web, insisting that TODAY is "Back to the Future Day." And now that the day has actually arrived, there have been countless articles (like, frankly, this one) and videos about what the film and its screenwriter, Bob Gale, got right about 2015.

As with other movies dealing with the future, such as "2001: A Space Odyssey" (set in the early 2000s) or "Blade Runner" (set in 2019, which will be here before you know it), the predictions of "Back to the Future II" are hit or miss: big-screen TVs, yes, Mr. Fusion, no; virtual-reality goggles, yes, "Jaws 19," no.

Coincidentally, perhaps the most important invention in the film is one behind the scenes: the VistaGlide motion-control system, a computer-operated camera operation that enabled Michael J. Fox to seamlessly share all those scenes with himself. The software was written by an Industrial Light & Magic developer, Bill Tondreau, specifically for the movie and was a milestone in moviemaking technology.

Still, it says something about the popularity of the trilogy that here we are, 26 years after the release of "Back to the Future II" (and 30 years after "Back to the Future"), and we care enough to "keep score." Even "Back to the Future" stars Fox and Christopher Lloyd discuss the topic in a new Toyota ad.

Elijah Wood, who made his film debut in "Back to the Future Part II," is also fascinated by the movie's predictions and discussed them on a recent "Conan."

Wood and host Conan O'Brien did single out an item the film got wrong -- the colander-like hat Wood's character wears in the film. They never became fashionable.